<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=<device-width>, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        //html
        let a = 1,
            b = 2,
            c = 3;
        console.log(a, b, c);
        //es6
        let [x, y, z] = [1, 2, 3]
        console.log(x, y, z);



        // 2.对象结构
        let user = {
            name: 'Helen',
            age: 18
        }


        //传统
        let name1 = user.name;
        let age1 =
            let.age;
        console.log(name1, age1);


        //es6
        let {
            name,
            age
        } = user

        console.log(name, age);
    </script>
</body>

</html>